Harper Desktop flags some Swift code in Xcode and ignores some prose

It looks like spellcheck is turned off and words that could be split into 2 dictionary words are left flagged. But since they're Swift code they shouldn't be.

This may not be fixable. I don't know what other grammar checkers that work via accessibility do in Xcode. If it's not fixable we can curate a list of apps Harper doesn't support

Start by reproducing the spellcheck and grammar-checking behavior in Harper Desktop while editing Swift code and prose in Xcode through accessibility. Compare the observed behavior with other grammar checkers that use accessibility, then determine whether Swift code can be excluded; done means fixing the behavior or documenting Xcode among unsupported apps.

Written by the indexing model from the issue text.